src/HOL/Tools/ATP_Manager/atp_systems.ML
author blanchet
Mon Jul 26 14:14:24 2010 +0200 (2010-07-26)
changeset 37994 b04307085a09
parent 37989 ca3041b0f445
child 37995 06f02b15ef8a
permissions -rw-r--r--
make TPTP generator accept full first-order formulas
blanchet@36376
     1
(*  Title:      HOL/Tools/ATP_Manager/atp_systems.ML
wenzelm@28592
     2
    Author:     Fabian Immler, TU Muenchen
blanchet@36371
     3
    Author:     Jasmin Blanchette, TU Muenchen
wenzelm@28592
     4
blanchet@36376
     5
Setup for supported ATPs.
wenzelm@28592
     6
*)
wenzelm@28592
     7
blanchet@36376
     8
signature ATP_SYSTEMS =
wenzelm@28592
     9
sig
blanchet@37623
    10
  val trace : bool Unsynchronized.ref
blanchet@36376
    11
  val dest_dir : string Config.T
blanchet@35867
    12
  val problem_prefix : string Config.T
blanchet@35867
    13
  val measure_runtime : bool Config.T
blanchet@35867
    14
  val refresh_systems_on_tptp : unit -> unit
blanchet@36371
    15
  val default_atps_param_value : unit -> string
blanchet@35867
    16
  val setup : theory -> theory
wenzelm@28592
    17
end;
wenzelm@28592
    18
blanchet@36376
    19
structure ATP_Systems : ATP_SYSTEMS =
wenzelm@28592
    20
struct
wenzelm@28596
    21
blanchet@37578
    22
open Metis_Clauses
blanchet@36187
    23
open Sledgehammer_Util
blanchet@35865
    24
open Sledgehammer_Fact_Filter
blanchet@37578
    25
open Sledgehammer_TPTP_Format
blanchet@35865
    26
open Sledgehammer_Proof_Reconstruct
blanchet@35867
    27
open ATP_Manager
blanchet@35826
    28
blanchet@37623
    29
val trace = Unsynchronized.ref false
blanchet@37623
    30
fun trace_msg msg = if !trace then tracing (msg ()) else ()
blanchet@37623
    31
blanchet@36376
    32
(** generic ATP **)
wenzelm@28596
    33
wenzelm@32944
    34
(* external problem files *)
boehmes@32864
    35
blanchet@36376
    36
val (dest_dir, dest_dir_setup) = Attrib.config_string "atp_dest_dir" (K "");
boehmes@32864
    37
  (*Empty string means create files in Isabelle's temporary files directory.*)
boehmes@32864
    38
boehmes@32864
    39
val (problem_prefix, problem_prefix_setup) =
wenzelm@36001
    40
  Attrib.config_string "atp_problem_prefix" (K "prob");
boehmes@32864
    41
boehmes@33247
    42
val (measure_runtime, measure_runtime_setup) =
wenzelm@36001
    43
  Attrib.config_bool "atp_measure_runtime" (K false);
boehmes@33247
    44
boehmes@32864
    45
blanchet@35867
    46
(* prover configuration *)
boehmes@32864
    47
wenzelm@32941
    48
type prover_config =
blanchet@36917
    49
  {home_var: string,
blanchet@36370
    50
   executable: string,
blanchet@37514
    51
   arguments: bool -> Time.time -> string,
blanchet@36370
    52
   proof_delims: (string * string) list,
blanchet@36370
    53
   known_failures: (failure * string) list,
blanchet@36382
    54
   max_axiom_clauses: int,
blanchet@37994
    55
   prefers_theory_relevant: bool,
blanchet@37994
    56
   explicit_forall: bool}
wenzelm@28596
    57
wenzelm@28596
    58
wenzelm@28596
    59
(* basic template *)
wenzelm@28596
    60
blanchet@36370
    61
val remotify = prefix "remote_"
blanchet@36370
    62
boehmes@32458
    63
fun with_path cleanup after f path =
boehmes@32458
    64
  Exn.capture f path
boehmes@32458
    65
  |> tap (fn _ => cleanup path)
boehmes@32458
    66
  |> Exn.release
blanchet@36369
    67
  |> tap (after path)
blanchet@36369
    68
blanchet@36369
    69
(* Splits by the first possible of a list of delimiters. *)
blanchet@36369
    70
fun extract_proof delims output =
blanchet@36369
    71
  case pairself (find_first (fn s => String.isSubstring s output))
blanchet@36369
    72
                (ListPair.unzip delims) of
blanchet@36369
    73
    (SOME begin_delim, SOME end_delim) =>
blanchet@36549
    74
    (output |> first_field begin_delim |> the |> snd
blanchet@36549
    75
            |> first_field end_delim |> the |> fst
blanchet@36549
    76
            |> first_field "\n" |> the |> snd
blanchet@36549
    77
     handle Option.Option => "")
blanchet@36369
    78
  | _ => ""
boehmes@32458
    79
blanchet@37514
    80
fun extract_proof_and_outcome complete res_code proof_delims known_failures
blanchet@37514
    81
                              output =
blanchet@36370
    82
  case map_filter (fn (failure, pattern) =>
blanchet@36370
    83
                      if String.isSubstring pattern output then SOME failure
blanchet@36370
    84
                      else NONE) known_failures of
blanchet@36369
    85
    [] => (case extract_proof proof_delims output of
blanchet@36370
    86
             "" => ("", SOME UnknownError)
blanchet@36370
    87
           | proof => if res_code = 0 then (proof, NONE)
blanchet@36370
    88
                      else ("", SOME UnknownError))
blanchet@37514
    89
  | (failure :: _) =>
blanchet@37514
    90
    ("", SOME (if failure = IncompleteUnprovable andalso complete then
blanchet@37514
    91
                 Unprovable
blanchet@37514
    92
               else
blanchet@37514
    93
                 failure))
blanchet@36370
    94
blanchet@36370
    95
fun string_for_failure Unprovable = "The ATP problem is unprovable."
blanchet@37413
    96
  | string_for_failure IncompleteUnprovable =
blanchet@37413
    97
    "The ATP cannot prove the problem."
blanchet@37627
    98
  | string_for_failure CantConnect = "Can't connect to remote ATP."
blanchet@36370
    99
  | string_for_failure TimedOut = "Timed out."
blanchet@36370
   100
  | string_for_failure OutOfResources = "The ATP ran out of resources."
blanchet@36370
   101
  | string_for_failure OldSpass =
blanchet@36393
   102
    (* FIXME: Change the error message below to point to the Isabelle download
blanchet@36393
   103
       page once the package is there (around the Isabelle2010 release). *)
blanchet@36370
   104
    "Warning: Sledgehammer requires a more recent version of SPASS with \
blanchet@36370
   105
    \support for the TPTP syntax. To install it, download and untar the \
blanchet@36370
   106
    \package \"http://isabelle.in.tum.de/~blanchet/spass-3.7.tgz\" and add the \
blanchet@36370
   107
    \\"spass-3.7\" directory's full path to \"" ^
blanchet@36370
   108
    Path.implode (Path.expand (Path.appends
blanchet@36370
   109
        (Path.variable "ISABELLE_HOME_USER" ::
blanchet@36370
   110
         map Path.basic ["etc", "components"]))) ^
blanchet@36370
   111
    "\" on a line of its own."
blanchet@36965
   112
  | string_for_failure MalformedInput =
blanchet@36965
   113
    "Internal Sledgehammer error: The ATP problem is malformed. Please report \
blanchet@36965
   114
    \this to the Isabelle developers."
blanchet@36370
   115
  | string_for_failure MalformedOutput = "Error: The ATP output is malformed."
blanchet@36370
   116
  | string_for_failure UnknownError = "Error: An unknown ATP error occurred."
blanchet@35865
   117
blanchet@36400
   118
fun shape_of_clauses _ [] = []
blanchet@36400
   119
  | shape_of_clauses j ([] :: clauses) = [] :: shape_of_clauses j clauses
blanchet@37498
   120
  | shape_of_clauses j ((_ :: lits) :: clauses) =
blanchet@36400
   121
    let val shape = shape_of_clauses (j + 1) (lits :: clauses) in
blanchet@36400
   122
      (j :: hd shape) :: tl shape
blanchet@36400
   123
    end
blanchet@36400
   124
blanchet@37623
   125
blanchet@37623
   126
(* Clause preparation *)
blanchet@37623
   127
blanchet@37623
   128
fun make_clause_table xs =
blanchet@37623
   129
  fold (Termtab.update o `(prop_of o snd)) xs Termtab.empty
blanchet@37623
   130
blanchet@37623
   131
(* Remove existing axiom clauses from the conjecture clauses, as this can
blanchet@37623
   132
   dramatically boost an ATP's performance (for some reason). *)
blanchet@37623
   133
fun subtract_cls ax_clauses =
blanchet@37623
   134
  filter_out (Termtab.defined (make_clause_table ax_clauses) o prop_of)
blanchet@37623
   135
blanchet@37994
   136
(* FIXME: kill *)
blanchet@37994
   137
fun mk_anot phi = AConn (ANot, [phi])
blanchet@37994
   138
fun mk_aconn c phi1 phi2 = AConn (c, [phi1, phi2])
blanchet@37623
   139
blanchet@37623
   140
(* making axiom and conjecture clauses *)
blanchet@37994
   141
fun make_clause thy (formula_id, formula_name, kind, th) skolems =
blanchet@37623
   142
  let
blanchet@37994
   143
    val (skolems, t) = th |> prop_of |> conceal_skolem_terms formula_id skolems
blanchet@37623
   144
    val (lits, ctypes_sorts) = literals_of_term thy t
blanchet@37994
   145
    (* FIXME: avoid "literals_of_term *)
blanchet@37994
   146
    val combformula =
blanchet@37994
   147
      case lits of
blanchet@37994
   148
        [] => APred (CombConst (("c_False", "False"), CombType (("bool", "bool"), []), []))
blanchet@37994
   149
      | _ =>
blanchet@37994
   150
        let val phis = lits |> map (fn FOLLiteral (pos, tm) => APred tm |> not pos ? mk_anot) in
blanchet@37994
   151
          fold (mk_aconn AOr) (tl phis) (hd phis)
blanchet@37994
   152
          |> kind = Conjecture ? mk_anot
blanchet@37994
   153
        end
blanchet@37623
   154
  in
blanchet@37994
   155
    (skolems,
blanchet@37994
   156
     FOLFormula {formula_name = formula_name, formula_id = formula_id,
blanchet@37994
   157
                 combformula = combformula, kind = kind,
blanchet@37994
   158
                 ctypes_sorts = ctypes_sorts})
blanchet@37623
   159
  end
blanchet@37623
   160
blanchet@37625
   161
fun add_axiom_clause thy ((name, k), th) (skolems, clss) =
blanchet@37623
   162
  let
blanchet@37625
   163
    val (skolems, cls) = make_clause thy (k, name, Axiom, th) skolems
blanchet@37994
   164
  in (skolems, (name, cls) :: clss) end
blanchet@37623
   165
blanchet@37623
   166
fun make_axiom_clauses thy clauses =
blanchet@37623
   167
  ([], []) |> fold_rev (add_axiom_clause thy) clauses |> snd
blanchet@37623
   168
blanchet@37623
   169
fun make_conjecture_clauses thy =
blanchet@37623
   170
  let
blanchet@37623
   171
    fun aux _ _ [] = []
blanchet@37625
   172
      | aux n skolems (th :: ths) =
blanchet@37623
   173
        let
blanchet@37625
   174
          val (skolems, cls) =
blanchet@37625
   175
            make_clause thy (n, "conjecture", Conjecture, th) skolems
blanchet@37625
   176
        in cls :: aux (n + 1) skolems ths end
blanchet@37623
   177
  in aux 0 [] end
blanchet@37623
   178
blanchet@37623
   179
(** Helper clauses **)
blanchet@37623
   180
blanchet@37994
   181
fun count_combterm (CombConst ((s, _), _, _)) =
blanchet@37994
   182
    Symtab.map_entry s (Integer.add 1)
blanchet@37623
   183
  | count_combterm (CombVar _) = I
blanchet@37994
   184
  | count_combterm (CombApp (t1, t2)) = fold count_combterm [t1, t2]
blanchet@37994
   185
fun count_combformula (AQuant (_, _, phi)) = count_combformula phi
blanchet@37994
   186
  | count_combformula (AConn (_, phis)) = fold count_combformula phis
blanchet@37994
   187
  | count_combformula (APred tm) = count_combterm tm
blanchet@37994
   188
fun count_fol_formula (FOLFormula {combformula, ...}) =
blanchet@37994
   189
  count_combformula combformula
blanchet@37623
   190
blanchet@37623
   191
fun cnf_helper_thms thy raw =
blanchet@37623
   192
  map (`Thm.get_name_hint)
blanchet@37926
   193
  #> (if raw then map (apfst (rpair 0)) else Clausifier.cnf_rules_pairs thy true)
blanchet@37623
   194
blanchet@37623
   195
val optional_helpers =
blanchet@37623
   196
  [(["c_COMBI", "c_COMBK"], (false, @{thms COMBI_def COMBK_def})),
blanchet@37623
   197
   (["c_COMBB", "c_COMBC"], (false, @{thms COMBB_def COMBC_def})),
blanchet@37623
   198
   (["c_COMBS"], (false, @{thms COMBS_def}))]
blanchet@37623
   199
val optional_typed_helpers =
blanchet@37623
   200
  [(["c_True", "c_False"], (true, @{thms True_or_False})),
blanchet@37623
   201
   (["c_If"], (true, @{thms if_True if_False True_or_False}))]
blanchet@37623
   202
val mandatory_helpers = @{thms fequal_imp_equal equal_imp_fequal}
blanchet@37623
   203
blanchet@37623
   204
val init_counters =
blanchet@37623
   205
  Symtab.make (maps (maps (map (rpair 0) o fst))
blanchet@37623
   206
                    [optional_helpers, optional_typed_helpers])
blanchet@37623
   207
blanchet@37623
   208
fun get_helper_clauses thy is_FO full_types conjectures axcls =
blanchet@37623
   209
  let
blanchet@37623
   210
    val axclauses = map snd (make_axiom_clauses thy axcls)
blanchet@37994
   211
    val ct = fold (fold count_fol_formula) [conjectures, axclauses]
blanchet@37994
   212
                  init_counters
blanchet@37623
   213
    fun is_needed c = the (Symtab.lookup ct c) > 0
blanchet@37623
   214
    val cnfs =
blanchet@37623
   215
      (optional_helpers
blanchet@37623
   216
       |> full_types ? append optional_typed_helpers
blanchet@37623
   217
       |> maps (fn (ss, (raw, ths)) =>
blanchet@37623
   218
                   if exists is_needed ss then cnf_helper_thms thy raw ths
blanchet@37623
   219
                   else []))
blanchet@37623
   220
      @ (if is_FO then [] else cnf_helper_thms thy false mandatory_helpers)
blanchet@37623
   221
  in map snd (make_axiom_clauses thy cnfs) end
blanchet@37623
   222
blanchet@37623
   223
(* prepare for passing to writer,
blanchet@37623
   224
   create additional clauses based on the information from extra_cls *)
blanchet@37623
   225
fun prepare_clauses full_types goal_cls axcls extra_cls thy =
blanchet@37623
   226
  let
blanchet@37623
   227
    val is_FO = forall (Meson.is_fol_term thy o prop_of) goal_cls
blanchet@37623
   228
    val ccls = subtract_cls extra_cls goal_cls
blanchet@37623
   229
    val _ = app (fn th => trace_msg (fn _ => Display.string_of_thm_global thy th)) ccls
blanchet@37623
   230
    val ccltms = map prop_of ccls
blanchet@37623
   231
    and axtms = map (prop_of o snd) extra_cls
blanchet@37623
   232
    val subs = tfree_classes_of_terms ccltms
blanchet@37623
   233
    and supers = tvar_classes_of_terms axtms
blanchet@37623
   234
    and tycons = type_consts_of_terms thy (ccltms @ axtms)
blanchet@37623
   235
    (*TFrees in conjecture clauses; TVars in axiom clauses*)
blanchet@37623
   236
    val conjectures = make_conjecture_clauses thy ccls
blanchet@37623
   237
    val (_, extra_clauses) = ListPair.unzip (make_axiom_clauses thy extra_cls)
blanchet@37623
   238
    val (clnames, axiom_clauses) = ListPair.unzip (make_axiom_clauses thy axcls)
blanchet@37623
   239
    val helper_clauses =
blanchet@37623
   240
      get_helper_clauses thy is_FO full_types conjectures extra_cls
blanchet@37623
   241
    val (supers', arity_clauses) = make_arity_clauses thy tycons supers
blanchet@37925
   242
    val class_rel_clauses = make_class_rel_clauses thy subs supers'
blanchet@37623
   243
  in
blanchet@37623
   244
    (Vector.fromList clnames,
blanchet@37925
   245
      (conjectures, axiom_clauses, extra_clauses, helper_clauses,
blanchet@37925
   246
       class_rel_clauses, arity_clauses))
blanchet@37623
   247
  end
blanchet@37623
   248
blanchet@37962
   249
fun extract_clause_sequence output =
blanchet@37962
   250
  let
blanchet@37962
   251
    val tokens_of = String.tokens (not o Char.isAlphaNum)
blanchet@37962
   252
    fun extract_num ("clause" :: (ss as _ :: _)) =
blanchet@37962
   253
    Int.fromString (List.last ss)
blanchet@37962
   254
      | extract_num _ = NONE
blanchet@37962
   255
  in output |> split_lines |> map_filter (extract_num o tokens_of) end
blanchet@37962
   256
blanchet@37962
   257
val set_ClauseFormulaRelationN = "set_ClauseFormulaRelation"
blanchet@37962
   258
blanchet@37962
   259
val parse_clause_formula_pair =
blanchet@37962
   260
  $$ "(" |-- scan_integer --| $$ "," -- Symbol.scan_id --| $$ ")"
blanchet@37962
   261
  --| Scan.option ($$ ",")
blanchet@37962
   262
val parse_clause_formula_relation =
blanchet@37962
   263
  Scan.this_string set_ClauseFormulaRelationN |-- $$ "("
blanchet@37962
   264
  |-- Scan.repeat parse_clause_formula_pair
blanchet@37962
   265
val extract_clause_formula_relation =
blanchet@37962
   266
  Substring.full
blanchet@37962
   267
  #> Substring.position set_ClauseFormulaRelationN
blanchet@37962
   268
  #> snd #> Substring.string #> strip_spaces #> explode
blanchet@37962
   269
  #> parse_clause_formula_relation #> fst
blanchet@37962
   270
blanchet@37989
   271
fun repair_conjecture_shape_and_theorem_names output conjecture_shape
blanchet@37989
   272
                                              thm_names =
blanchet@37962
   273
  if String.isSubstring set_ClauseFormulaRelationN output then
blanchet@37962
   274
    let
blanchet@37989
   275
      (* FIXME: hd of head once clausification is left to the ATP *)
blanchet@37989
   276
      val j0 = hd (List.concat conjecture_shape)
blanchet@37962
   277
      val seq = extract_clause_sequence output
blanchet@37962
   278
      val name_map = extract_clause_formula_relation output
blanchet@37989
   279
      fun renumber_conjecture j =
blanchet@37989
   280
        AList.find (op =) name_map (conjecture_prefix ^ Int.toString (j - j0))
blanchet@37989
   281
        |> the_single
blanchet@37989
   282
        |> (fn s => find_index (curry (op =) s) seq + 1)
blanchet@37962
   283
    in
blanchet@37989
   284
      (conjecture_shape |> map (map renumber_conjecture),
blanchet@37989
   285
       seq |> map (the o AList.lookup (op =) name_map)
blanchet@37989
   286
           |> map (fn s => case try (unprefix axiom_prefix) s of
blanchet@37989
   287
                             SOME s' => undo_ascii_of s'
blanchet@37989
   288
                           | NONE => "")
blanchet@37989
   289
           |> Vector.fromList)
blanchet@37962
   290
    end
blanchet@37962
   291
  else
blanchet@37989
   292
    (conjecture_shape, thm_names)
blanchet@37962
   293
blanchet@37623
   294
blanchet@37499
   295
(* generic TPTP-based provers *)
blanchet@37499
   296
blanchet@37499
   297
fun generic_tptp_prover
blanchet@37499
   298
        (name, {home_var, executable, arguments, proof_delims, known_failures,
blanchet@37994
   299
                max_axiom_clauses, prefers_theory_relevant, explicit_forall})
blanchet@37580
   300
        ({debug, overlord, full_types, explicit_apply, relevance_threshold,
blanchet@37580
   301
          relevance_convergence, theory_relevant, defs_relevant, isar_proof,
blanchet@37580
   302
          isar_shrink_factor, ...} : params)
blanchet@37499
   303
        minimize_command timeout
blanchet@35969
   304
        ({subgoal, goal, relevance_override, axiom_clauses, filtered_clauses}
blanchet@35969
   305
         : problem) =
wenzelm@28596
   306
  let
immler@31750
   307
    (* get clauses and prepare them for writing *)
blanchet@37498
   308
    val (ctxt, (_, th)) = goal;
wenzelm@32942
   309
    val thy = ProofContext.theory_of ctxt;
blanchet@37926
   310
    val goal_clss = #1 (Clausifier.neg_conjecture_clauses ctxt th subgoal)
blanchet@36400
   311
    val goal_cls = List.concat goal_clss
immler@31752
   312
    val the_filtered_clauses =
blanchet@37621
   313
      case filtered_clauses of
blanchet@37621
   314
        SOME fcls => fcls
blanchet@37621
   315
      | NONE => relevant_facts full_types relevance_threshold
blanchet@37499
   316
                    relevance_convergence defs_relevant max_axiom_clauses
blanchet@37499
   317
                    (the_default prefers_theory_relevant theory_relevant)
blanchet@37499
   318
                    relevance_override goal goal_cls
blanchet@37926
   319
                |> Clausifier.cnf_rules_pairs thy true
blanchet@37506
   320
    val the_axiom_clauses = axiom_clauses |> the_default the_filtered_clauses
blanchet@35969
   321
    val (internal_thm_names, clauses) =
blanchet@37499
   322
      prepare_clauses full_types goal_cls the_axiom_clauses the_filtered_clauses
blanchet@37499
   323
                      thy
immler@31750
   324
boehmes@32864
   325
    (* path to unique problem file *)
blanchet@36376
   326
    val the_dest_dir = if overlord then getenv "ISABELLE_HOME_USER"
blanchet@36376
   327
                       else Config.get ctxt dest_dir;
blanchet@36376
   328
    val the_problem_prefix = Config.get ctxt problem_prefix;
boehmes@32864
   329
    fun prob_pathname nr =
blanchet@36143
   330
      let
blanchet@36143
   331
        val probfile =
blanchet@36568
   332
          Path.basic ((if overlord then "prob_" ^ name
blanchet@36568
   333
                       else the_problem_prefix ^ serial_string ())
blanchet@36143
   334
                      ^ "_" ^ string_of_int nr)
wenzelm@32942
   335
      in
blanchet@36376
   336
        if the_dest_dir = "" then File.tmp_path probfile
blanchet@36376
   337
        else if File.exists (Path.explode the_dest_dir)
blanchet@36376
   338
        then Path.append (Path.explode the_dest_dir) probfile
blanchet@36376
   339
        else error ("No such directory: " ^ the_dest_dir ^ ".")
wenzelm@32942
   340
      end;
boehmes@32864
   341
blanchet@36917
   342
    val home = getenv home_var
blanchet@36289
   343
    val command = Path.explode (home ^ "/" ^ executable)
immler@31750
   344
    (* write out problem file and call prover *)
blanchet@37514
   345
    fun command_line complete probfile =
blanchet@37514
   346
      let
blanchet@37514
   347
        val core = File.shell_path command ^ " " ^ arguments complete timeout ^
blanchet@37514
   348
                   " " ^ File.shell_path probfile
blanchet@37514
   349
      in
blanchet@37514
   350
        (if Config.get ctxt measure_runtime then
blanchet@37514
   351
           "TIMEFORMAT='%3U'; { time " ^ core ^ " ; }"
blanchet@37514
   352
         else
blanchet@37962
   353
           "exec " ^ core) ^ " 2>&1"
blanchet@37514
   354
      end
boehmes@32510
   355
    fun split_time s =
boehmes@32510
   356
      let
wenzelm@32942
   357
        val split = String.tokens (fn c => str c = "\n");
blanchet@36369
   358
        val (output, t) = s |> split |> split_last |> apfst cat_lines;
wenzelm@32942
   359
        fun as_num f = f >> (fst o read_int);
wenzelm@32942
   360
        val num = as_num (Scan.many1 Symbol.is_ascii_digit);
wenzelm@32942
   361
        val digit = Scan.one Symbol.is_ascii_digit;
wenzelm@32942
   362
        val num3 = as_num (digit ::: digit ::: (digit >> single));
wenzelm@32942
   363
        val time = num --| Scan.$$ "." -- num3 >> (fn (a, b) => a * 1000 + b);
wenzelm@32942
   364
        val as_time = the_default 0 o Scan.read Symbol.stopper time o explode;
blanchet@36369
   365
      in (output, as_time t) end;
boehmes@32458
   366
    fun run_on probfile =
blanchet@37962
   367
      if home = "" then
blanchet@37962
   368
        error ("The environment variable " ^ quote home_var ^ " is not set.")
blanchet@37962
   369
      else if File.exists command then
blanchet@37514
   370
        let
blanchet@37514
   371
          fun do_run complete =
blanchet@37514
   372
            let
blanchet@37514
   373
              val command = command_line complete probfile
blanchet@37514
   374
              val ((output, msecs), res_code) =
blanchet@37514
   375
                bash_output command
blanchet@37514
   376
                |>> (if overlord then
blanchet@37514
   377
                       prefix ("% " ^ command ^ "\n% " ^ timestamp () ^ "\n")
blanchet@37514
   378
                     else
blanchet@37514
   379
                       I)
blanchet@37514
   380
                |>> (if Config.get ctxt measure_runtime then split_time
blanchet@37514
   381
                     else rpair 0)
blanchet@37514
   382
              val (proof, outcome) =
blanchet@37514
   383
                extract_proof_and_outcome complete res_code proof_delims
blanchet@37514
   384
                                          known_failures output
blanchet@37514
   385
            in (output, msecs, proof, outcome) end
blanchet@37643
   386
          val readable_names = debug andalso overlord
blanchet@37514
   387
          val (pool, conjecture_offset) =
blanchet@37994
   388
            write_tptp_file thy readable_names explicit_forall full_types
blanchet@37994
   389
                            explicit_apply probfile clauses
blanchet@37514
   390
          val conjecture_shape = shape_of_clauses (conjecture_offset + 1) goal_clss
blanchet@37514
   391
          val result =
blanchet@37514
   392
            do_run false
blanchet@37550
   393
            |> (fn (_, msecs0, _, SOME _) =>
blanchet@37514
   394
                   do_run true
blanchet@37514
   395
                   |> (fn (output, msecs, proof, outcome) =>
blanchet@37514
   396
                          (output, msecs0 + msecs, proof, outcome))
blanchet@37514
   397
                 | result => result)
blanchet@37514
   398
        in ((pool, conjecture_shape), result) end
blanchet@36382
   399
      else
blanchet@36382
   400
        error ("Bad executable: " ^ Path.implode command ^ ".");
wenzelm@28592
   401
blanchet@36167
   402
    (* If the problem file has not been exported, remove it; otherwise, export
blanchet@36167
   403
       the proof file too. *)
blanchet@36376
   404
    fun cleanup probfile =
blanchet@36376
   405
      if the_dest_dir = "" then try File.rm probfile else NONE
blanchet@37514
   406
    fun export probfile (_, (output, _, _, _)) =
blanchet@36376
   407
      if the_dest_dir = "" then
blanchet@36187
   408
        ()
blanchet@36187
   409
      else
blanchet@37514
   410
        File.write (Path.explode (Path.implode probfile ^ "_proof")) output
wenzelm@32257
   411
blanchet@37514
   412
    val ((pool, conjecture_shape), (output, msecs, proof, outcome)) =
blanchet@37514
   413
      with_path cleanup export run_on (prob_pathname subgoal)
blanchet@37989
   414
    val (conjecture_shape, internal_thm_names) =
blanchet@37989
   415
      repair_conjecture_shape_and_theorem_names output conjecture_shape
blanchet@37989
   416
                                                internal_thm_names
blanchet@37514
   417
blanchet@35969
   418
    val (message, relevant_thm_names) =
blanchet@36370
   419
      case outcome of
blanchet@36400
   420
        NONE =>
blanchet@36400
   421
        proof_text isar_proof
blanchet@37480
   422
            (pool, debug, isar_shrink_factor, ctxt, conjecture_shape)
blanchet@37480
   423
            (full_types, minimize_command, proof, internal_thm_names, th,
blanchet@37480
   424
             subgoal)
blanchet@36370
   425
      | SOME failure => (string_for_failure failure ^ "\n", [])
boehmes@32864
   426
  in
blanchet@36393
   427
    {outcome = outcome, message = message, pool = pool,
blanchet@37514
   428
     relevant_thm_names = relevant_thm_names, atp_run_time_in_msecs = msecs,
blanchet@37514
   429
     output = output, proof = proof, internal_thm_names = internal_thm_names,
blanchet@36400
   430
     conjecture_shape = conjecture_shape,
blanchet@35969
   431
     filtered_clauses = the_filtered_clauses}
blanchet@37499
   432
  end
wenzelm@28596
   433
blanchet@35969
   434
fun tptp_prover name p = (name, generic_tptp_prover (name, p));
wenzelm@28596
   435
blanchet@36382
   436
fun to_generous_secs time = (Time.toMilliseconds time + 999) div 1000
blanchet@36142
   437
wenzelm@28596
   438
(* E prover *)
wenzelm@28596
   439
blanchet@36369
   440
val tstp_proof_delims =
blanchet@36369
   441
  ("# SZS output start CNFRefutation.", "# SZS output end CNFRefutation")
blanchet@36369
   442
blanchet@35969
   443
val e_config : prover_config =
blanchet@36917
   444
  {home_var = "E_HOME",
blanchet@36289
   445
   executable = "eproof",
blanchet@37514
   446
   arguments = fn _ => fn timeout =>
blanchet@36382
   447
     "--tstp-in --tstp-out -l5 -xAutoDev -tAutoDev --silent --cpu-limit=" ^
blanchet@36382
   448
     string_of_int (to_generous_secs timeout),
blanchet@36369
   449
   proof_delims = [tstp_proof_delims],
blanchet@36265
   450
   known_failures =
blanchet@36370
   451
     [(Unprovable, "SZS status: Satisfiable"),
blanchet@36370
   452
      (Unprovable, "SZS status Satisfiable"),
blanchet@36370
   453
      (TimedOut, "Failure: Resource limit exceeded (time)"),
blanchet@36370
   454
      (TimedOut, "time limit exceeded"),
blanchet@36370
   455
      (OutOfResources,
blanchet@36370
   456
       "# Cannot determine problem status within resource limit"),
blanchet@36370
   457
      (OutOfResources, "SZS status: ResourceOut"),
blanchet@36370
   458
      (OutOfResources, "SZS status ResourceOut")],
blanchet@36382
   459
   max_axiom_clauses = 100,
blanchet@37994
   460
   prefers_theory_relevant = false,
blanchet@37994
   461
   explicit_forall = false}
blanchet@35969
   462
val e = tptp_prover "e" e_config
wenzelm@28596
   463
wenzelm@28596
   464
blanchet@36219
   465
(* The "-VarWeight=3" option helps the higher-order problems, probably by
blanchet@36219
   466
   counteracting the presence of "hAPP". *)
blanchet@37498
   467
val spass_config : prover_config =
blanchet@37962
   468
  {home_var = "ISABELLE_ATP_MANAGER",
blanchet@37962
   469
   executable = "SPASS_TPTP",
blanchet@37550
   470
   (* "div 2" accounts for the fact that SPASS is often run twice. *)
blanchet@37514
   471
   arguments = fn complete => fn timeout =>
blanchet@37962
   472
     ("-Auto -PGiven=0 -PProblem=0 -Splits=0 -FullRed=0 -DocProof \
blanchet@37550
   473
      \-VarWeight=3 -TimeLimit=" ^
blanchet@37550
   474
      string_of_int (to_generous_secs timeout div 2))
blanchet@37514
   475
     |> not complete ? prefix "-SOS=1 ",
blanchet@36369
   476
   proof_delims = [("Here is a proof", "Formulae used in the proof")],
blanchet@36289
   477
   known_failures =
blanchet@37413
   478
     [(IncompleteUnprovable, "SPASS beiseite: Completion found"),
blanchet@36370
   479
      (TimedOut, "SPASS beiseite: Ran out of time"),
blanchet@36965
   480
      (OutOfResources, "SPASS beiseite: Maximal number of loops exceeded"),
blanchet@37413
   481
      (MalformedInput, "Undefined symbol"),
blanchet@37414
   482
      (MalformedInput, "Free Variable"),
blanchet@37962
   483
      (OldSpass, "tptp2dfg")],
blanchet@36382
   484
   max_axiom_clauses = 40,
blanchet@37994
   485
   prefers_theory_relevant = true,
blanchet@37994
   486
   explicit_forall = true}
blanchet@37414
   487
val spass = tptp_prover "spass" spass_config
wenzelm@28596
   488
blanchet@37509
   489
(* Vampire *)
blanchet@37509
   490
blanchet@37509
   491
val vampire_config : prover_config =
blanchet@37509
   492
  {home_var = "VAMPIRE_HOME",
blanchet@37509
   493
   executable = "vampire",
blanchet@37514
   494
   arguments = fn _ => fn timeout =>
blanchet@37509
   495
     "--output_syntax tptp --mode casc -t " ^
blanchet@37509
   496
     string_of_int (to_generous_secs timeout),
blanchet@37509
   497
   proof_delims =
blanchet@37509
   498
     [("=========== Refutation ==========",
blanchet@37509
   499
       "======= End of refutation ======="),
blanchet@37509
   500
      ("% SZS output start Refutation", "% SZS output end Refutation")],
blanchet@37509
   501
   known_failures =
blanchet@37509
   502
     [(Unprovable, "UNPROVABLE"),
blanchet@37509
   503
      (IncompleteUnprovable, "CANNOT PROVE"),
blanchet@37509
   504
      (Unprovable, "Satisfiability detected"),
blanchet@37509
   505
      (OutOfResources, "Refutation not found")],
blanchet@37509
   506
   max_axiom_clauses = 60,
blanchet@37994
   507
   prefers_theory_relevant = false,
blanchet@37994
   508
   explicit_forall = false}
blanchet@37509
   509
val vampire = tptp_prover "vampire" vampire_config
blanchet@37509
   510
blanchet@37509
   511
(* Remote prover invocation via SystemOnTPTP *)
wenzelm@28596
   512
blanchet@36376
   513
val systems = Synchronized.var "atp_systems" ([]: string list);
immler@31835
   514
immler@31835
   515
fun get_systems () =
blanchet@36370
   516
  case bash_output "\"$ISABELLE_ATP_MANAGER/SystemOnTPTP\" -w" of
blanchet@36370
   517
    (answer, 0) => split_lines answer
blanchet@36370
   518
  | (answer, _) =>
blanchet@37627
   519
    error ("Failed to get available systems at SystemOnTPTP:\n" ^
blanchet@37627
   520
           perhaps (try (unsuffix "\n")) answer)
immler@31835
   521
blanchet@35867
   522
fun refresh_systems_on_tptp () =
blanchet@37509
   523
  Synchronized.change systems (fn _ => get_systems ())
immler@31835
   524
immler@31835
   525
fun get_system prefix = Synchronized.change_result systems (fn systems =>
boehmes@32864
   526
  (if null systems then get_systems () else systems)
wenzelm@32942
   527
  |> `(find_first (String.isPrefix prefix)));
boehmes@32864
   528
wenzelm@32948
   529
fun the_system prefix =
boehmes@32864
   530
  (case get_system prefix of
blanchet@37509
   531
    NONE => error ("System " ^ quote prefix ^ " not available at SystemOnTPTP.")
wenzelm@32942
   532
  | SOME sys => sys);
immler@31835
   533
blanchet@36265
   534
val remote_known_failures =
blanchet@37627
   535
  [(CantConnect, "HTTP-Error"),
blanchet@37627
   536
   (TimedOut, "says Timeout"),
blanchet@36377
   537
   (MalformedOutput, "Remote script could not extract proof")]
blanchet@35865
   538
blanchet@37509
   539
fun remote_config atp_prefix args
blanchet@36382
   540
        ({proof_delims, known_failures, max_axiom_clauses,
blanchet@37994
   541
          prefers_theory_relevant, explicit_forall, ...} : prover_config)
blanchet@37994
   542
        : prover_config =
blanchet@36917
   543
  {home_var = "ISABELLE_ATP_MANAGER",
blanchet@36289
   544
   executable = "SystemOnTPTP",
blanchet@37514
   545
   arguments = fn _ => fn timeout =>
blanchet@36382
   546
     args ^ " -t " ^ string_of_int (to_generous_secs timeout) ^ " -s " ^
blanchet@36382
   547
     the_system atp_prefix,
blanchet@36369
   548
   proof_delims = insert (op =) tstp_proof_delims proof_delims,
blanchet@36265
   549
   known_failures = remote_known_failures @ known_failures,
blanchet@36382
   550
   max_axiom_clauses = max_axiom_clauses,
blanchet@37994
   551
   prefers_theory_relevant = prefers_theory_relevant,
blanchet@37994
   552
   explicit_forall = explicit_forall}
wenzelm@28596
   553
blanchet@37509
   554
fun remote_tptp_prover prover atp_prefix args config =
blanchet@37509
   555
  tptp_prover (remotify (fst prover)) (remote_config atp_prefix args config)
boehmes@32864
   556
blanchet@37509
   557
val remote_e = remote_tptp_prover e "EP---" "" e_config
blanchet@37509
   558
val remote_spass = remote_tptp_prover spass "SPASS---" "-x" spass_config
blanchet@37509
   559
val remote_vampire = remote_tptp_prover vampire "Vampire---9" "" vampire_config
wenzelm@28592
   560
blanchet@36917
   561
fun maybe_remote (name, _) ({home_var, ...} : prover_config) =
blanchet@36917
   562
  name |> getenv home_var = "" ? remotify
blanchet@36371
   563
blanchet@36371
   564
fun default_atps_param_value () =
blanchet@36371
   565
  space_implode " " [maybe_remote e e_config, maybe_remote spass spass_config,
blanchet@36371
   566
                     remotify (fst vampire)]
blanchet@36371
   567
blanchet@37509
   568
val provers = [e, spass, vampire, remote_e, remote_spass, remote_vampire]
blanchet@35867
   569
val prover_setup = fold add_prover provers
blanchet@35867
   570
blanchet@35867
   571
val setup =
blanchet@36376
   572
  dest_dir_setup
blanchet@35867
   573
  #> problem_prefix_setup
blanchet@35867
   574
  #> measure_runtime_setup
blanchet@36371
   575
  #> prover_setup
blanchet@35867
   576
wenzelm@28592
   577
end;